EP0417901A2 - Kratzfester ionomerer Film - Google Patents

Kratzfester ionomerer Film Download PDF

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Publication number
EP0417901A2
EP0417901A2 EP90308520A EP90308520A EP0417901A2 EP 0417901 A2 EP0417901 A2 EP 0417901A2 EP 90308520 A EP90308520 A EP 90308520A EP 90308520 A EP90308520 A EP 90308520A EP 0417901 A2 EP0417901 A2 EP 0417901A2
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EP
European Patent Office
Prior art keywords
monomer
abrasion resistant
mole
vinyl
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90308520A
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English (en)
French (fr)
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EP0417901A3 (en
Inventor
Hans Georg C/O Minnesota Mining And Feichtmeier
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3M Co
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Minnesota Mining and Manufacturing Co
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Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0417901A2 publication Critical patent/EP0417901A2/de
Publication of EP0417901A3 publication Critical patent/EP0417901A3/en
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters

Definitions

  • the invention relates to acrylic copolymers and copolymer compositions which are suited for making clear non-adhesive sheet materials such as films and coated substrates, such materials providing very high impact toughness levels.
  • the copolymers contain at least three different vinyl monomers of which two belong to the acrylate series while the third monomer is an N-vinyl lactam, preferably an N-vinylpyrrolidone.
  • a high impact strength has primary importance since automobiles externally coated with films are subject to impact during the operation thereof, e.g. by small stones or gravel thrown up from road surfaces, hail, and the like.
  • European Patent No. 95,093 describes a self-adhesive ornamental film resistant to stone impact.
  • the film consists of a polymer blend of polyvinyl chloride and an ethylene-vinylacetate copolymer and incorporates an acrylate adhesive which imparts adhesive properties to the film material.
  • the film backing supporting the adhesive has a polyurethane primer thereon.
  • the copolymer blend is thermally treated to be drawn out into films and then laminated by means of the polyurethane primer with an acrylate adhesive product.
  • This patent proposes that adhesive films of this type may be used as impact-resistant ornamental films for automobiles, e.g., for the protection of color-painted metal surfaces.
  • U.S. Patent No. 4,650,845 describes UV-curable polymer compositions suited for making abrasion-resistant cast articles.
  • the compositions are obtained by polymerizing a mix of up to 100 parts of a urethane polyacrylic ester and up to 100 parts of a second component consisting of 30 to 60 wt. % of a polyacrylic ester having 4 to 10 acryloyloxy groups; 20 to 70 wt % of a modifier for controlling polymerization shrinkage and up to 30 wt. % of a monomer diluent.
  • Surface coatings are in fact obtained, but no film or foil materials are made.
  • the patent is silent as to the impact toughness or the weather resistance of cast articles made in this manner.
  • the production of these abrasion-resistant compositions requires expensive materials such as acrylated polyurethanes in order to obtain the polymer product.
  • Polar monomers disclosed as useful in Levens include strongly polar monomers such as acrylic acid, or moderately polar monomers such as N-vinyl pyrrolidone.
  • a typical composition consists of about 50 to 70% isooctyl acrylate (IOA) and corresponding 50 to 30% acrylic acid.
  • a terpolymer composition contains 40 to 65% IOA and 60 to 35% of a mixture of acrylic acid (AA) and N-vinyl-­pyrrolidone (NVP), which may be crosslinked to form an adhesive film under UV radiation in the presence of a photoinitiator such as 2,2-bis-isobutyronitrile or 2,2′-dimethyoxy-2-phenylacetophenone (Irgacure 651). It is specifically stated that the compositions may not contain any other reactive diluents. The resultant films are non-adhesive at room temperature; when heated, they develop aggressive adhesion.
  • U.S. Patent 4,364,972 discloses the use of N-vinylpyrrolidone as the polar copolymerizable monomer in the acrylate adhesive copolymer to provide a pressure-­sensitive adhesive with high adhesion to automotive paints.
  • European Patent Application 234,749 describes polymer hydrogels suited for contact lenses and exhibiting a water reception between 60 and 70 wt.%.
  • the underlying monomer composition is based on N-vinylpyrrolidone, a hydroxyalkylmethacrylate and lower alkyl acrylate ester compounds. No acrylic acid units are present.
  • Other NVP-containing polymers have also been proposed for soft contact lenses because of their good water reception properties (DE-OS 23 34 010, DE-OS 23 34 011, European Patent 106,650).
  • the object of the present invention is to provide an acrylate copolymer composition, having substantially no inherent adhesiveness, which exhibits physical properties such as sensitivity to moisture, weather resistance, impact toughness and tensile strength. Physical characteristics of individual copolymers may be varied by adjusting the molar ratios of the monomers as desired to provide low-adhesion basic materials suited for deformation into non-adhesive films or sheets.
  • Another object of the invention is the use of the novel copolymer compositions for producing films and foils and coated substrates comprising a coating containing at least one of the instant copolymer compositions.
  • Terpolymer compositions of the invention comprise
  • the invention also provides nonadhesive films made from such compositions.
  • the films are useful for, inter alia , coatings, abrasion resistant films, and fabric treatments.
  • compositions of the invention comprise a terpolymer containing an alkyl acrylate monomer, and two polar copolymerizable monomers.
  • the alkyl acrylate monomer includes the mono- and diesters of the aforesaid acrylic acids with a mono- or polyvalent alcohol may be used wherein the alcoholic alkyl group has an average of from about 4 to 14 carbon atoms.
  • Useful monomers include n-butyl, isobutyl, terbutyl, n-pentyl, 2-methylbutyl, 2-ethylpropyl, isopentyl(2), syn-hexyl and isohexyl, n-heptyl and isoheptyl, n-octyl and isooctyl, n-nonyl and isononyl, n-decyl and isodecyl, n-undecyl and isoundecyl, n-dodecyl and isododecyl.
  • polyols may be esterified, such as trivalent alcohols and alcohols from the sugar alcohol series. It should be understood that a broad variety of properties may be adjusted by properly selecting the alcoholic ester group.
  • Preferable ester alcohols include C6 to C9 alkanols, with their isoalcohols being particularly advantageous.
  • the alkyl side chains preferably comprise methyl or ethyl groups only so as to prevent steric bonds from forming, as would be the case with a terbutyl group, for example. This does not exclude the possibility of more than one methyl or ethyl group being present in the side chain position, however.
  • Preferred monomers include isooctyl acrylate, butyl acrylate, isononyl acrylate, and dodecyl acrylate.
  • the polar copolymerizable monomers are selected such that a first polar monomer is selected from strongly polar monomers, and a second polar monomer is selected from moderately polar monomers.
  • Preferred strongly polar monomers include acrylic acid, methacrylic acid, and itaconic acid.
  • Acrylic acid is highly preferred, with the presence of an additional acrylic acid compound from the above group, preferably in an amount of up to 10 wt. % relative to the incorporated acid unit, being optional.
  • the term "acrylic acid” is used in this description to designate the group of the aforesaid monomers or polar monomers derived therefrom.
  • the acrylic acid unit is present in a salt-forming form in an amount, e.g. up to more than 50 mole % of the acidic hydrogen group, and preferably between 20 and 45 mole % if an acidity modification is desired, the corresponding cation may be provided by substituted amines or amides, with the lower-alkyl substituted secondary and tertiary amines and the pyridinium, piperidinium pyrrolidonium and other heterocyclic nitrogen bases having five- or six-element rings and up to three nitrogen atoms attached to the ring in the molecule being particularly suitable.
  • the moderately polar monomer in the inventive terpolymer composition is an n-vinyl lactam preferably comprising bifunctional trimethylene, tetramethylene or pentamethylene group, optionally substituted with lower alkyl. Monosubstitution is preferred.
  • Suitable N-vinyl lactams are N-vinyl-pyrrolidones and N-vinyl caprolactams, with the unsubstituted N-vinylpyrrolidone being particularly preferred.
  • more than one n-vinyl lactam may be polymerized, which may result in very specialized properties, particularly in the case of two different vinyl lactams.
  • the inventive terpolymer compositions are not determined by the characteristics of either the strongly nor the moderately polar monomer used. Rather, the properties of the novel terpolymers have little resemblance to those of N-vinylpyrrolidone, (NVP), which is water-soluble and very brittle in its polymer form. Further, while acrylic acid ester/NVP or acrylic acid/acrylic acid ester copolymers are typical adhesives and acrylic acid /NVP copolymers are brittle and water soluble, the terpolymer compositions of the invention have little or no adhesion but are pliable and resistant to impact.
  • N-vinylpyrrolidone N-vinylpyrrolidone
  • Preferred terpolymers comprise isooctyl acrylate, acrylic or methacrylic acid, and N-vinyl pyrrolidone.
  • the ratio of the strongly polar monomer to the N-vinyl lactam is from about 0.8 to about 1.2, preferably from about 0.9 to about 1.1, more preferably about 1:1, and the ratio of each polar monomer to the alkyl acrylate monomer is from about 0.4:1 to about 0.85:1, preferably to about 0.8:1, most preferably to about 0.7:1.
  • Coordinates of the compositions are listed in Table I below: Table I Coordinates of the Compositions in Figure 1 (Mole Percents) Composition Monomer (a) Monomer (b) Monomer (c) e.g. AA e.g. IOA e.g. NVP E 45 30 25 F 30 30 40 G 15 40 45 H 20 60 20 I 35 35 20 Preferred: K 37 33 30 L 30 33 37 M 20 53 27 N 27 53 20 H 20 60
  • This ratio of the composition implies nothing about a statistic or block-copolymeric arrangement, although statistically copolymerized polymers are one group in the preferred class of polymers.
  • Another preferred group of these terpolymer compositions results from the polymerization of the strongly polar monomer and the alkyl acrylate monomer up to a specific conversion level and a subsequent polymerization together with the N-vinyl lactam so that the terpolymer so obtained does not correspond to a statistic distribution of monomer units.
  • the inner block is a copolymer consisting predominantly of the alkyl acrylate and strongly polar monomer while the outer block or blocks consist of almost pure N-vinyl lactam or of a terpolymer block in which the amount of N-vinyl lactam is higher than for the terpolymer overall.
  • a well-directed block copolymerization performed in the above sense is advantageous in that it becomes possible to adjust the claimed copolymer composition for very specific spectra of properties, e.g., block copolymerization to form terpolymers exhibiting a specific window of properties.
  • the novel composition of the invention also contains a photoinitiator to induce polymerization of the monomers.
  • Photoinitiators that are useful for polymerizing the acrylate monomer include the benzoin ethers, substituted benzoin ethers such as benzoin methyl ether or benzoin isopropyl ether, substituted acetophenones such as 2,2-diethoxy-­acetophenone, and 2,2-dimethoxy-2-phenyl-acetophenone, substituted alpha-ketols such as 2-methyl-2-hydroxypropio­phenone, aromatic sulphonyl chlorides such as 2-naphthalene sulphonyl chloride, and photoactive oximes such as 1-phenyl-1,2-propanedione-2-(O-ethoxycarbonyl) oxime.
  • the photoinitiator is present in an amount of from about 0.01 part to about 1.0 part per 100 parts monomer weight (phr).
  • Such optional ingredients may be acrylic acid alkyl ester with a lower methyl to C3 alkyl group, acrylonitrile, acrylamide, N-C1-C12-alkyl-substituted acrylamide, acrylic acid esters of amino alcohols with 1 to 6 carbon atoms and substituted with N-C1-C6-alkyl, vinyl alcohol, vinyl acetate, vinyl chloride, and the like.
  • Such ingredients may be copolymerized into the terpolymer.
  • the photopolymerizable composition preferably contains a crosslinking agent to enhance cohesive strength.
  • Suitable crosslinking agents include hydrogen abstracting carbonyls such as anthroquinone and benzophenone and their derivatives, as disclosed in U.S. 4,181,752 (Martens), and polyfunctional acrylates such as 1,6-hexanedioldiacrylate, trimethylolpropane triacrylate and 1,2-ethylene glycol diacrylate, as well as those disclosed in U.S. Patent No. 4,379,201, (Heilmann).
  • Useful crosslinking agents which also function as photoinitiators are the chromophore-substituted halomethyl-s-triazines disclosed in U.S. Patent Nos. 4,330,590 (Vesley) and 4,329,384 (Vesley et al.), incorporated herein by reference.
  • the total amount of additional reactant, whether monomer or additional adjuvant should not be greater than 30 mole % of the total monomer units, preferably not more than 10 mole %.
  • terpolymer composition may be used to enhance the desirable properties of the invention, such as tensile strength or strength to fracture particularly at low temperatures, transparence, abrasion resistance, low or limited water absorption and low to total lack of adhesiveness.
  • the inventive terpolymer compositions may additionally contain a nonreactant polymer which is soluble or dispersible in one of the monomers or in the monomer blend.
  • elastomeric polymer additives such as NBR rubber used.
  • Another, particularly useful class of polymer additives are olefin/acrylic acid copolymers, particularly the ethylene/acrylic acid copolymers, which preferably are formed of up to 50 wt % acrylic acid units, the remainder ethylene, propylene or another olefin such as isopropylene, butylene-1 or butylene-2, butadiene and the like.
  • an inter-penetrating polymer network (IPN) will be present after the terpolymer composition has cured; this way, the adverse effects of diffusion and incompatibilities may be suppressed substantially.
  • the amount of IPN-forming polymers is about 0.5 to 40 phr. Particularly preferred are about 1 to 20 parts by weight.
  • part of the strongly polar monomer it is possible for part of the strongly polar monomer to be not necessarily incorporated only in the terpolymer composition; it may be externally incorporated in the additive IPN polymer, so that additional possibilities of modification arise.
  • the terpolymer films may also contain a plasticizer such as dioctylphthalate or an oligomeric polyester plasticizer preferably in amounts of 1 to 30 parts by weight phr.
  • a plasticizer such as dioctylphthalate or an oligomeric polyester plasticizer preferably in amounts of 1 to 30 parts by weight phr.
  • the generally known polymerization methods may be used. Starting from a blend of the monomers to be polymerized together with a free radicals-forming catalyst or a catalyst activatable by thermal energy, the polymerization is performed radically and/or thermally. Polymerization may be in bulk or in a solution, with the latter term including the various form of emulsion and dispersion polymerization. If a radically initiated polymerization is used, the catalyst concentration preferably is within the range of 0.05 to 0.5 parts by weight of the initiator, relative to the total monomer weight. Suitable initiators are known and include benzoylperoxide, azo-bis-isobutyronitrile, peroxycarboxylate, di-tert butylperoxide and others.
  • a step-wise polymerization is particularly advantageous.
  • a prepolymer is created which consists predominantly of the alkyl acrylate monomer and the strongly polar monomer, thereafter, the polymerization process is continued with under addition of the N-vinyl lactam or of a mixture of the N-vinyl lactam and the remaining strongly polar monomer so that polymer composition having a block structure will form which comprise an inner block substantially in the nature of a copolymer composition and outer blocks in which the N-vinyl lactam is dominant.
  • This step-wise polymerization has several advantages as it results in the formation of specific terpolymer structures which, for example, are more hydrophobic in the inner block and more hydrophilic in the outer blocks.
  • the polymerization may also be performed on a substrate or in mold-cast multilayered assemblies so that the sequential addition of the components in a bulk polymerization process results in the building up of specific layered structures.
  • the terpolymer compositions of the invention are preferably prepared by premixing together the monomers and and a photoinitiator. This premix is then partially polymerized to a viscosity in the range of from about 500 cps to about 50,000 cps to achieve a coatable syrup.
  • the monomers can be mixed with a thixotropic agent such as fumed silica to achieve a coatable syrup composition.
  • This composition is coated onto a flexible carrier web and polymerized in an inert, i.e., oxygen free, atmosphere, e.g., a nitrogen atmosphere.
  • an inert atmosphere i.e., oxygen free, atmosphere, e.g., a nitrogen atmosphere.
  • a sufficiently inert atmosphere can be achieved by covering a layer of the photoactive coating with a plastic film which is substantially transparent to ultraviolet radiation, and irradiating through that film in air using fluorescent-type ultraviolet lamps which provide a total ultraviolet radiation dosage of about 500 millijoules.
  • the permissible oxygen content of the inert atmosphere can be increased by mixing into the polymerizable monomer an oxidizable tin compound as taught in U.S. Patent No. 4,303,485 (Levens), incorporated herein by reference, which also teaches that such procedures will allow thick coatings to be polymerized in air.
  • the preferred initiators are potassium persulfate and the organic peroxide initiators.
  • the polymerization temperatures are determined by the kind of initiation and by the sequencing that may be employed. Conventional polymerization temperatures are within the range of room temperature (20°C) to 120°C, with temperatures of 40°C to 80°C being particularly practicable.
  • the solution or emulsion polymerization is carried out preferably in a polar solvent such as water, ethanol, glycol, ether or ester, with water-mixed system at times presenting certain advantages.
  • a polar solvent such as water, ethanol, glycol, ether or ester
  • the polymerized product is recovered by precipitation or by evaporating the solvent. Residual solvent is not unfavorable in the processing of the product into films or sheets if it can be evaporated in the subsequent curing treatment.
  • the terpolymer compositions After the terpolymer compositions have been cast, sprayed or extruded to form sheets or films, they are cured in situ by ionizing, actinic or thermal radiation.
  • the adhesive compositions may be coated onto a backing or substrate prior to polymerization. This may be accomplished using any conventional means such as roller coating, dip coating or extrusion coating.
  • inventive terpolymer compositions by the fact that the compositions were found to exhibit a modification of the carbonyl bridges actually observed for acrylic acid/acrylic alkyl ester such as IOA/AA by the incorporation of the carboxyl hydrogen as the N-vinyl lactam is included in the terpolymer, giving rise to certain internal strength conditions, which result in the abrasion resistance and toughness exhibited by the terpolymers of the invention.
  • An interaction between the carboxyl hydrogen, e.g. the acrylic acid unit and the nitrogen atom of component (c) appears to have decisive importance for a bridging bond and an increase in internal strength by more than one order of magnitude.
  • the inventive terpolymer compositions within the preferred composition polygons of Figure 1 showed no measurable adhesive bonding for a period of 20 minutes at room temperature or at 70°C.
  • the adhesive bonding ascertained after exposure to 120°C for a period of 30 minutes is shown in Figure 5, which confirms that in the polar monomer equimolar range a valley occurs of about 1 Newton per 1.27 cm, while in the range of AA or NVP molar excess, the adhesive properties gradually reappear, though on a very low overall level.
  • the sealing effect of the terpolymer composition on steel is greater than the inherent strength of the sample (cohesion) so that the sample adheres irreversibly to the steel substrate.
  • inventive terpolymer compositions are suited for an outstanding variety of applications, i.e., the cross-linked film polymer may be used as a tape backing material, with the backing itself and the coat of adhesive photopolymerized in a single trip by multilayer coating, as disclosed in U.S. Patent 4,818,610 (Zimmerman et al.).
  • the terpolymers are also useful as protective films for various substrates, decorated, adhesive films, films and shaped components for safety structures, sealing of wood, cement, and other surfaces, transparent weather-resistant films, and the like.
  • a film sample is slit to a width of 1/2 inch (1.27 cm), transferred to a smooth stainless steel plate overrolled by a weight comprising a 2.04 kg hard rubber-coated steel roller, with 2 passes used in each direction. After 20 minutes of dwell time at 23°C, 90° peel is measured by moving the free end of the film away from the steel plate at a rate of about 0.5 cm per second (using a tensile tester).
  • the film samples were weighed, immersed for 24 hrs. in totally desalted water and then removed by means of pincers. Adhering water was removed by letting it drip off-swabbing (1 hr. conditioning at room temperature). The samples were weighed again to determine the percentage of water absorbed by the polymer.
  • the film samples are bonded to an aluminum sheet by means of a standard PSA and placed in a Gardner lmpact Tester. A steel ball weighted with 2 kg is dropped on the test sheet from a height of 150 cm and causes the aluminum to sustain permanent deformation. The sample is deemed to have passed the test if it does not change color to white (film crystallization) and does not break or crack at room temperature and 50% air humidity.
  • a film sample 300 ⁇ m thick bonded to an Al sheet is abraded in 1000 cycles of a circular pattern using a Taber Abrasor test machine with an H18 abrasion wheel and 1000 g load. The result is evaluated as ⁇ m of abraded film gauge in percents relative to film gauge prior to the abrasion treatment.
  • the film is tested according to the standard General Motors GM E 60 225 test. The sample is deemed to have passed the test if it does not swell, wrinkle or dissolve superficially.
  • a film sample 10 cm long and 300 ⁇ m thick is bonded to an Al sheet using a 50 ⁇ m coat of a standard PSA; the change in length is evaluated after 60 min. at 150°C. With results less than 0.5%, the sample is deemed to have passed the test.
  • the film samples are tested in a Weather-o-Meter (WOM) according to ASTM E42, the cycle being as follows: 102 min. UV at 35°C; 18 min. UV and water condensation at 60 - 80°C alternating for 20 hrs; then electrode replacement and new cycle. The sample is deemed to have passed the test if the film does not show yellowing or cracks after 1000 hrs.
  • WOM Weather-o-Meter
  • a workable copolymer had formed which was coated on silicone-sized paper in a thickness of about 30 to 3000 ⁇ m and cured under UV radiation in a nitrogen atmosphere or with the syrup covered with a transparent film to form the corresponding film.
  • compositions are described in Table II below and the physical characteristics and properties of the compositions are reported in Table III.
  • inventive films are also resistant to gravel impact, gasoline, and weathering. They are both shrink and flow resistant at temperatures up to 150°C.
  • the film of example 4 is preferred because it is temperature stable to 150°C (paint drying cycles), it is paintable using conventional paint systems (excellent paint-to-film bond), it is stable under gravel impact also if painted, and it may be deep-drawn in the cold condition when less than 100 ⁇ m thick (important for coating the film on a substrate).
  • a deep-drawable 100 ⁇ m film insert is coated with about 100 to 200 ⁇ m of adhesive (also UV cured,.e.g. the adhesive of example 1) so as to realize the adhesive coating thickness necessary for optimizing the gravel impact resistance of the paint-film-adhesive assembly.
  • adhesive also UV cured,.e.g. the adhesive of example 1
  • Application of the adhesive coat to the film layer may be realized in the form of a subsequent UV curing step at the time of the UV film curing treatment (multifeed head, cascade cure) or by laminating the film and the adhesive.
  • the film adhesive composite is bonded to metal or plastic parts, deep-drawn into cavities or recesses, if any, and then painted. This obviates also the filler normally applied to the substrate prior to conventional painting.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)
EP19900308520 1989-09-11 1990-08-02 Abrasion resistant ionomer film Withdrawn EP0417901A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40695789A 1989-09-11 1989-09-11
US406957 1989-09-11

Publications (2)

Publication Number Publication Date
EP0417901A2 true EP0417901A2 (de) 1991-03-20
EP0417901A3 EP0417901A3 (en) 1991-12-27

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EP19900308520 Withdrawn EP0417901A3 (en) 1989-09-11 1990-08-02 Abrasion resistant ionomer film

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EP (1) EP0417901A3 (de)
JP (1) JPH03106913A (de)
KR (1) KR910006382A (de)
CA (1) CA2021957A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005077993A1 (de) * 2004-02-16 2005-08-25 Basf Aktiengesellschaft Ethylencopolymere und ihre verwendung zur herstellung von materialien zur stofftrennung, tonern, druckfarben und lacken
US7459148B2 (en) 2001-12-11 2008-12-02 Basf Aktiengesellschaft Cosmetic agent containing at least one copolymer having N-vinyllactam units

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100426145B1 (ko) * 2001-03-08 2004-04-08 금호타이어 주식회사 타이어 벨트부의 검 엣지 인장력 제어장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL216873A (de) * 1956-05-14
US4650845A (en) * 1984-07-10 1987-03-17 Minnesota Mining And Manufacturing Company Ultra-violet light curable compositions for abrasion resistant articles
DE3684945D1 (de) * 1985-02-27 1992-05-27 Ucb Sa Durch strahlung vernetzbare ueberzugszusammensetzung.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7459148B2 (en) 2001-12-11 2008-12-02 Basf Aktiengesellschaft Cosmetic agent containing at least one copolymer having N-vinyllactam units
WO2005077993A1 (de) * 2004-02-16 2005-08-25 Basf Aktiengesellschaft Ethylencopolymere und ihre verwendung zur herstellung von materialien zur stofftrennung, tonern, druckfarben und lacken

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Publication number Publication date
KR910006382A (ko) 1991-04-29
CA2021957A1 (en) 1991-03-12
EP0417901A3 (en) 1991-12-27
JPH03106913A (ja) 1991-05-07

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